Poroid Hidradenoma: Case Report and Comprehensive Review of the Literature

Poroid hidradenoma (PH) is a rare benign adnexal tumor of eccrine differentiation. It is the rarest of the four described variants of poroid neoplasms. PHs characteristically share a hybrid of the architectural features of the hidradenoma, namely, tumor cells are entirely intradermal with both solid...

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Bibliographic Details
Published in:Case reports in dermatology 2023-01, Vol.15 (1), p.202-216
Main Authors: Brooks, Arrin, Morris, Mariah, Cuda, Jonathan, Rahimpour, Armein, Munie, Semeret
Format: Article
Language:English
Subjects:
adnexal neoplasm
Asymptomatic
Cancer
Case and Review
Case reports
Cysts
eccrine
Exocrine glands
Granulomas
Literature reviews
poroid hidradenoma
Skin cancer
sweat gland tumor
Systematic review
Tumors
Ultrasonic imaging
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Description
Summary:Poroid hidradenoma (PH) is a rare benign adnexal tumor of eccrine differentiation. It is the rarest of the four described variants of poroid neoplasms. PHs characteristically share a hybrid of the architectural features of the hidradenoma, namely, tumor cells are entirely intradermal with both solid and cystic components, and the cytologic characteristics of the poroid neoplasms, containing predominantly poroid and cuticular cells. Many published reports of PH since its original discovery in 1990 state that “very few” cases of PH can be found in the literature. Here, we have identified a total of 75 published accounts of PH, including the case presented here, as well as the associated patient demographics, lesion characteristics, treatment, and outcomes. We suggest that while uncommon, PH is likely not exceptionally rare and could be an underreported diagnosis.
ISSN:1662-6567
1662-6567
DOI:10.1159/000531052